CN201689962U - Multi-path shared frequency combiner - Google Patents
Multi-path shared frequency combiner Download PDFInfo
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- CN201689962U CN201689962U CN2010202187861U CN201020218786U CN201689962U CN 201689962 U CN201689962 U CN 201689962U CN 2010202187861 U CN2010202187861 U CN 2010202187861U CN 201020218786 U CN201020218786 U CN 201020218786U CN 201689962 U CN201689962 U CN 201689962U
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- line
- main line
- coupling
- coupling line
- utility
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Abstract
The utility model provides a multi-path shared frequency combiner, comprising a double faced PCB plate, a main line and a coupling line. The utility model is characterized in that the main line and the coupling line are respectively disposed at both sides of the PCB plate in a microstrip line style; the projection of the coupling line disposed at back of the PCB plate on the front surface superposes with the main line, and a coupler structure with the width being in length of 1/4 wavelength is formed and is in serial connection through the main line; a signal input port IN is disposed at the input end of the main line and the coupling line, and a load port LOAD is disposed at the load end of the coupling line; a signal output port OUT is disposed at the signal output end of the main line. The utility model is advantageous in that with the adoption of a multi-coupling mode, volume and cost can be reduced, and frequency band can be expanded and market universality can be increased; compared with prior art, the volume of the combiner is reduced by half and the bandwidth is increased by 15%, while the thickness is the same.
Description
Technical field
The utility model relates to the microstrip coupler field of the communications field, and the same frequency combiner of particularly a kind of multichannel.
Background technology
In covering, the internal home network of repeater obtained a large amount of uses with frequency combiner, multi-system access platform (POI) particularly, it is the parts of a key, requires fluctuation little, loss is low, characteristics such as standing wave is little, and frequency band is wide, one adopts branch line coupler 3db polyphone to join (Fig. 1) because multichannel commonly used is with frequency combiner, though it is fairly simple in the design, but its frequency band can't be expanded, and relative bandwidth is less, and the scope of application and versatility are restricted always.
Summary of the invention
In view of this, the utility model provides a kind of structure processing simple, with low cost, and has than the same frequency combiner of the multichannel of low-loss and broad frequency band.
The utility model proposes the same frequency combiner of a kind of multichannel, comprise two-sided pcb board, main line and coupling line.Main line and coupling line are arranged at the two sides of pcb board respectively with micro strip line type.The projection of coupling line in the front that is arranged at the back side coincides with main line, constitutes the coupler structure of broadside 1/4 wavelength, and connected by main line.Signal input IN is arranged at the input of main line and coupling line.Load port LOAD is arranged at the load end of coupling line.Signal output OUT is arranged at the signal output part of main line.
In the utility model, described main line comprises first lead and second lead, and the end of described first lead connects the head end of second lead.
In the utility model, described first conductor length is 40mm, and width is 1.4mm, and described second conductor length is 40mm, and width is 1.71mm.
In the utility model, described coupling line comprises first coupling line and second coupling line, and the projection of described first coupling line in the front coincides with first lead, and the projection of described second coupling line in the front coincides with second lead.
In the utility model, described first Coupled Line Length of Band is 40mm, and width is 1.71mm, and described second Coupled Line Length of Band is 40mm, and width is 1.4mm.
In the utility model, described pcb board length is 95mm, and width is 44.6mm, and thickness is 0.3mm.
The utility model utilizes the microstrip line coupler structure stable, and the Q value is high, can expand characteristics such as frequency band, and the two sides makes coupler on pcb board, and a plurality of couplers of connecting, and increases input port.The beneficial effects of the utility model are, adopt multiple coupled mode, not only can reduce volume, save cost, and tool can also be expanded frequency range, increase the versatility in market.Utilize the little bandwidth of versatility differential loss of coupler wide, structure processing is simple, loss with low cost, lower, and bandwidth is suitable for the multichannel combiner unit of high bandwidth.This multichannel is compared with existing product with frequency combiner, and volume reduces half, and bandwidth increases by 15%, and thickness is constant.
Description of drawings
Fig. 1 be in the prior art multichannel with the structural representation of frequency combiner.
Fig. 2 is the PCB front schematic view of the utility model embodiment.
Fig. 2 is the PCB schematic rear view of the utility model embodiment.
Fig. 4 is the PCB perspective diagram of the utility model embodiment, and dotted portion is the microstrip line profile at the back side among the figure.
Embodiment
For above-mentioned and other purpose, feature and advantage of the present utility model can be become apparent, preferred embodiment cited below particularly, and conjunction with figs. are described in detail below.
The utility model adopts multiple coupled series circuit method, and realization multichannel frequency range is closed the road function, and conductor adopts two-sided pcb board material, and copper is covered on the surface.Use the microstrip line manufacture method, main line runs through other coupling line, respectively with two-layer up and down, main line is on the upper strata, and coupling line utilizes broadside coupled 1/4 wavelength to make coupler in the structure of lower floor, connected, the utility model is operated in the 3G frequency range antenna-feedback systems such as GSM, CDMA, TD-SCDMA again.
In conjunction with Fig. 2～Fig. 4, separate main line and coupling line with pcb board 2 in the utility model, two different coupling conductors of a conductor series connection.Main line and coupling line overlaid wherein produce two kinds of different coupling values respectively, utilize the stack of the degree of coupling and loss, Yi Bian be coupled as 3.3db, loss is 3.3db.Another side is coupled as 5db, and loss is 1.7db, three IN mouths is united arrive the value of OUT mouth to make system less than 6.8db most,
Main line in the utility model comprises first lead 1 and second lead 3, and wherein, the end of first lead 1 connects the head end of second lead 3.Coupling line comprises that first coupling line 4 and the projection of 5, two coupling lines of second coupling line in the front coincide with first lead 1 and second lead 3 respectively,
Concrete, pcb board 2 long 95mm, wide 44.6mm, thick 0.3mm.First lead, 1 long 40mm, width is 1.4mm.Second lead, 3 long 40mm, wide 1.71mm.Article two, in the coupling line, first coupling line, 4 long 40mm, width is 1.71mm.Second coupling line, 5 long 40mm, width is 1.4mm.
Concrete case study on implementation only is a preferable case study on implementation of the present utility model described in the utility model, is not to be used for limiting practical range of the present utility model.Be that all equivalences of doing according to the content of the utility model claim change and modification, all should be as technology category of the present utility model.
Claims (6)
1. same frequency combiner of multichannel, it is characterized in that, comprise two-sided pcb board, main line and coupling line, described main line and coupling line are arranged at the two sides of pcb board respectively with micro strip line type, the projection of coupling line in the front that is arranged at the back side coincides with main line, constitute the coupler structure of broadside 1/4 wavelength, and connected by main line, signal input is arranged at the input of main line and coupling line, and load port is arranged at the load end of coupling line, and signal output is arranged at the signal output part of main line.
2. the same frequency combiner of multichannel according to claim 1 is characterized in that described main line comprises first lead and second lead, and the end of described first lead connects the head end of second lead.
3. the same frequency combiner of multichannel according to claim 2 is characterized in that described first conductor length is 40mm, and width is 1.4mm, and described second conductor length is 40mm, and width is 1.71mm.
4. the same frequency combiner of multichannel according to claim 2, it is characterized in that, described coupling line comprises first coupling line and second coupling line, and the projection of described first coupling line in the front coincides with first lead, and the projection of described second coupling line in the front coincides with second lead.
5. the same frequency combiner of multichannel according to claim 4 is characterized in that described first Coupled Line Length of Band is 40mm, and width is 1.71mm, and described second Coupled Line Length of Band is 40mm, and width is 1.4mm.
6. the same frequency combiner of multichannel according to claim 1 is characterized in that described pcb board length is 95mm, and width is 44.6mm, and thickness is 0.3mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202187861U CN201689962U (en) | 2010-06-08 | 2010-06-08 | Multi-path shared frequency combiner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202187861U CN201689962U (en) | 2010-06-08 | 2010-06-08 | Multi-path shared frequency combiner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201689962U true CN201689962U (en) | 2010-12-29 |
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ID=43378240
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202187861U Expired - Fee Related CN201689962U (en) | 2010-06-08 | 2010-06-08 | Multi-path shared frequency combiner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201689962U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103779644A (en) * | 2013-11-01 | 2014-05-07 | 京信通信系统（中国）有限公司 | Signal coupling combination device |
| CN103904404A (en) * | 2014-04-08 | 2014-07-02 | 吴俊伟 | 3 dB electric bridge with mutual interference portions |
| CN107681241A (en) * | 2017-11-22 | 2018-02-09 | 福州同创微波通讯技术有限公司 | A kind of two-way cavity coupler and method of work having with frequency combining function |
-
2010
- 2010-06-08 CN CN2010202187861U patent/CN201689962U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103779644A (en) * | 2013-11-01 | 2014-05-07 | 京信通信系统（中国）有限公司 | Signal coupling combination device |
| CN103779644B (en) * | 2013-11-01 | 2016-10-05 | 京信通信系统（中国）有限公司 | Road device is closed in signal coupling |
| CN103904404A (en) * | 2014-04-08 | 2014-07-02 | 吴俊伟 | 3 dB electric bridge with mutual interference portions |
| CN103904404B (en) * | 2014-04-08 | 2016-04-20 | 滨州医学院 | A kind of 3dB electric bridge with portion of disturbing mutually |
| CN107681241A (en) * | 2017-11-22 | 2018-02-09 | 福州同创微波通讯技术有限公司 | A kind of two-way cavity coupler and method of work having with frequency combining function |
| CN107681241B (en) * | 2017-11-22 | 2023-11-03 | 福州同创微波通讯技术有限公司 | Double-channel cavity coupler with same-frequency combining function |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101229 Termination date: 20150608 |
|
| EXPY | Termination of patent right or utility model |